WO1994016822A1 - Oil cleaning assemblies for engines - Google Patents
Oil cleaning assemblies for engines Download PDFInfo
- Publication number
- WO1994016822A1 WO1994016822A1 PCT/GB1994/000107 GB9400107W WO9416822A1 WO 1994016822 A1 WO1994016822 A1 WO 1994016822A1 GB 9400107 W GB9400107 W GB 9400107W WO 9416822 A1 WO9416822 A1 WO 9416822A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- oil
- cone
- engines
- ribs
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/005—Centrifugal separators or filters for fluid circulation systems, e.g. for lubricant oil circulation systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
- F01M2001/1028—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the type of purification
- F01M2001/1035—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the type of purification comprising centrifugal filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0422—Separating oil and gas with a centrifuge device
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S494/00—Imperforate bowl: centrifugal separators
- Y10S494/901—Imperforate bowl: centrifugal separators involving mixture containing oil
Definitions
- This invention concerns lubricating oil cleaning assemblies for engines particularly internal combustion engines.
- Servicing engines and particularly car and truck engines is a labour- intensive operation which needs to be done rapidly so disposable oil-cleaning units need to be used wherever possible.
- centrifugal separators which are now in more common use than was previously the case, act essentially as by-pass oil cleaning devices, because they usually treat only part of the oil flow from the pump, typically up to about 10% of the total, prior to returning the treated oil direct to the sump.
- centrifugal separators have been proposed, they have been of the spin-on type which depends from a mounting in the same way as disposable full flow filters.
- centrifugal separators normally drain by gravity to the sump, a second pipe connection at their lower end has had to be provided which is a serious drawback.
- the centrifugal separator itself is not disposable but the rotor is. This is because a disposable rotor should preferably be non-disassemblable and tamper-proof, which helps prevent ingress of dirt during maintenance.
- centrifugal separator is found in patent No GB 2,160,796B in which there is provided an oil cleaning assembly for an engine, comprising a centrifugal separator unit and a filter unit which each have a casing releasably connected at one end to a mounting means in such a way that the casings may be independently removed from the mounting means, and which both have an oil inlet and an oil outlet at said end, the centrifugal separator unit being arranged to extend substantially vertically upwards from the mounting means and being of the kind in which oil to be treated is introduced into the interior of a substantially closed rotor under pressure and leaves the rotor through discharge means, typically a pair of nozzles such that the reaction force spins the rotor about a substantially vertical axis, and the mounting means providing a common oil supply passage for the separator unit and filter unit whereby oil flows in parallel through both the separator unit and the filter unit at all times when oil flows through said passage, a drain passage for draining oil from the separator unit to
- the rotor base immediately above the discharge means usually includes a separation cone in the form of a downwardly facing frustum of a cone whose upper rim or apex is spaced from a central support tube for the rotor and whose periphery or base is attached to the inside of the rotor wall, at or adjacent the base thereof.
- the separation cone thus partially divides the rotor into two separate, but communicating chambers, one of which is relatively large and constitutes the upper part of the rotor which receives the detritus from the oil.
- the other, or lower chamber is relatively small and from which the oil escapes via the nozzles.
- the separation cone is believed to be advantageous in causing a change of direction of oil flow inwardly towards the central tub before it can escape via the nozzles. This results in serpentine flow path which gives more opportunity for detritu to be trapped on the inner wall of the rotor.
- improved separation of detritus can b accomplished by a modified separation cone construction.
- a centrifugal separator of the kind described includes a separation cone provided with a plurality of radially extending ribs.
- the number of ribs is not critical, although if too many are used, their effect is reduced.
- a preferred number of ribs would be in the range 5 to 10, depending on the size (diameter) of the cone.
- the exact shape of the ribs does not appear to be critical, it is preferred that they are located towards the inner edge of the cone, where the oil velocity is lower, rather than at the radially outermost edge of the cone, where it is affixed to the rotor wall and/or base.
- the rotor comprises a generally cylindrical casing 1, the upper part 2 of which is secured to a cylindrical bush 3.
- the latter serves to locate and retain a central tube 4.
- the lower end of the rotor has a base plate 5 attached at its outer margin to the lower rim of the casing 1 by an annular crimp or fold 6.
- the inner margin of the base plate 5 is fixed to the lower end of the central tube 4 by rolling over the end region of the latter so as to provide further support.
- a further cylindrical bush which is provided at the foot of the tube .
- a plate 7 in the form of a frustum of a cone, the upper or apex margin 8 of which terminates so as to define an annular gap 9 between it and the central tube 4. Adjacent the upper end of the tube 4 there are two diametrically opposed oil inlet ports 12, only one of which can be seen in the Figure.
- the plate 7 is the separation cone for the rotor. In this case, it includes a plurality of radially extending ribs 15, according to the invention. (For reasons of clarity, the lower portion of the central tube has been cut away so that the shape/disposition of these ribs 15 may be better seen.) In this instance, some ten ribs were provided, although in a smaller size of rotor, it would be preferably to have a smaller number, say five ribs in all, for the reason given earlier. The ribs were 2.5mm deep and about 7mm wide, with rounded side edges. The radially outward ends of the ribs were spaced from the casing 1; the inner ends were close to the margin 9, although for reasons -of clarity the spacing is slightly exaggerated in the Figure.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51679594A JP3343257B2 (en) | 1993-01-23 | 1994-01-20 | Engine oil purification assembly |
US08/433,405 US5683342A (en) | 1993-01-23 | 1994-01-20 | Oil cleaning assemblies for engines |
EP94904290A EP0680381B1 (en) | 1993-01-23 | 1994-01-20 | Oil cleaning assemblies for engines |
DE69406771T DE69406771T2 (en) | 1993-01-23 | 1994-01-20 | OIL CLEANING SYSTEM FOR ENGINES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9301340.7 | 1993-01-23 | ||
GB9301340A GB2274413B (en) | 1993-01-23 | 1993-01-23 | Oil cleaning assemblies for engines |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994016822A1 true WO1994016822A1 (en) | 1994-08-04 |
Family
ID=10729222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1994/000107 WO1994016822A1 (en) | 1993-01-23 | 1994-01-20 | Oil cleaning assemblies for engines |
Country Status (7)
Country | Link |
---|---|
US (1) | US5683342A (en) |
EP (1) | EP0680381B1 (en) |
JP (1) | JP3343257B2 (en) |
DE (1) | DE69406771T2 (en) |
ES (1) | ES2109666T3 (en) |
GB (1) | GB2274413B (en) |
WO (1) | WO1994016822A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2283694B (en) * | 1993-11-09 | 1998-04-22 | Glacier Metal Co Ltd | Oil cleaning assemblies for engines |
US7597658B2 (en) | 2005-04-15 | 2009-10-06 | Mann & Hummel Gmbh | Centrifugal separator and rotor therefor |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5707519A (en) * | 1996-11-27 | 1998-01-13 | Caterpillar Inc. | Centrifugal oil filter with particle retention |
GB2322314B (en) | 1997-02-21 | 2000-08-23 | Glacier Metal Co Ltd | Centrifugal separator |
DE19715661A1 (en) * | 1997-04-16 | 1998-10-22 | Mann & Hummel Filter | Centrifuge rotor |
GB2328890B (en) * | 1997-09-03 | 2001-08-22 | Glacier Co Ltd | Centrifugal separation apparatus |
GB9718563D0 (en) * | 1997-09-03 | 1997-11-05 | Glacier Metal Co Ltd | Centrifugal Separation Apparatus |
US6183407B1 (en) * | 1998-04-02 | 2001-02-06 | Alfa Laval Ab | Centrifugal separator having axially-extending, angled separation discs |
SE521360C2 (en) * | 1999-03-30 | 2003-10-28 | Alfa Laval Corp Ab | Reaction-driven centrifuge rotor |
US6533712B1 (en) | 2000-10-17 | 2003-03-18 | Fleetguard, Inc. | Centrifuge housing with oil fill port |
US6511005B2 (en) | 2001-03-30 | 2003-01-28 | Fluid-Quip, Inc. | Bowl centrifuge nozzle |
US20040072668A1 (en) * | 2002-10-15 | 2004-04-15 | Baker Hughes Incorporated | Liquid phase discharge port incorporating chamber nozzle device for centrifuge |
GB2477791B (en) * | 2010-02-15 | 2014-08-27 | Mann & Hummel Gmbh | Centrifugal separator with snap fit separation cone |
CN103821590B (en) * | 2014-02-26 | 2017-03-08 | 江门市大长江集团有限公司 | Crankcase oil-gas separation mechanism |
CN104594972B (en) * | 2014-11-21 | 2017-08-01 | 重庆隆鑫发动机有限公司 | Force the centrifugal fine filter and its engine of impurity separation |
CN104806325B (en) * | 2015-04-14 | 2018-02-02 | 重庆隆鑫发动机有限公司 | Centrifugal fine filter and its engine |
US11952926B2 (en) | 2018-10-11 | 2024-04-09 | Cummins Filtration Ip, Inc. | Rotating separator with single assembly orientation and integrated counterbalance |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1214612B (en) * | 1960-08-25 | 1966-04-14 | Charles Somville | Conical centrifugal drum |
US4400167A (en) * | 1980-04-11 | 1983-08-23 | The Glacier Metal Company Limited | Centrifugal separator |
GB2160796A (en) * | 1984-05-04 | 1986-01-02 | Ae Plc | Oil cleaning assemblies for engines |
EP0193000A2 (en) * | 1985-02-26 | 1986-09-03 | Ae Plc | Disposable cartridges for centrifugal separators |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1122457A (en) * | 1913-07-21 | 1914-12-29 | Laval Separator Co De | Clarification of milk. |
US1760071A (en) * | 1926-09-17 | 1930-05-27 | Standard Brands Inc | Centrifugal separator |
GB1525833A (en) * | 1976-03-24 | 1978-09-20 | Glacier Metal Co Ltd | Centrifugal separator |
US4288030A (en) * | 1979-04-12 | 1981-09-08 | The Glacier Metal Company Limited | Centrifugal separator |
SU957929A1 (en) * | 1981-02-06 | 1982-09-15 | Ленинградский Ордена Трудового Красного Знамени Инженерно-Строительный Институт | Centrifugal cleaner |
US4492631A (en) * | 1982-01-19 | 1985-01-08 | Ae Plc | Centrifugal separator |
US4498898A (en) * | 1982-04-16 | 1985-02-12 | Ae Plc | Centrifugal separator |
US4557831A (en) * | 1984-04-12 | 1985-12-10 | Mack Trucks, Inc. | Centrifugal filter assembly |
GB8618006D0 (en) * | 1986-07-23 | 1986-08-28 | Ae Plc | Centrifugal oil filter |
SE457612B (en) * | 1987-12-07 | 1989-01-16 | Alfa Laval Separation Ab | Centrifugal separator causes separation of a substance dispersed in a liquid |
-
1993
- 1993-01-23 GB GB9301340A patent/GB2274413B/en not_active Expired - Lifetime
-
1994
- 1994-01-20 DE DE69406771T patent/DE69406771T2/en not_active Expired - Lifetime
- 1994-01-20 WO PCT/GB1994/000107 patent/WO1994016822A1/en active IP Right Grant
- 1994-01-20 JP JP51679594A patent/JP3343257B2/en not_active Expired - Lifetime
- 1994-01-20 US US08/433,405 patent/US5683342A/en not_active Expired - Lifetime
- 1994-01-20 EP EP94904290A patent/EP0680381B1/en not_active Expired - Lifetime
- 1994-01-20 ES ES94904290T patent/ES2109666T3/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1214612B (en) * | 1960-08-25 | 1966-04-14 | Charles Somville | Conical centrifugal drum |
US4400167A (en) * | 1980-04-11 | 1983-08-23 | The Glacier Metal Company Limited | Centrifugal separator |
GB2160796A (en) * | 1984-05-04 | 1986-01-02 | Ae Plc | Oil cleaning assemblies for engines |
EP0193000A2 (en) * | 1985-02-26 | 1986-09-03 | Ae Plc | Disposable cartridges for centrifugal separators |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Derwent World Patents Index; * |
See also references of EP0680381A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2283694B (en) * | 1993-11-09 | 1998-04-22 | Glacier Metal Co Ltd | Oil cleaning assemblies for engines |
US7597658B2 (en) | 2005-04-15 | 2009-10-06 | Mann & Hummel Gmbh | Centrifugal separator and rotor therefor |
Also Published As
Publication number | Publication date |
---|---|
GB2274413A (en) | 1994-07-27 |
US5683342A (en) | 1997-11-04 |
GB2274413B (en) | 1996-07-10 |
EP0680381A1 (en) | 1995-11-08 |
GB9301340D0 (en) | 1993-03-17 |
DE69406771D1 (en) | 1997-12-18 |
EP0680381B1 (en) | 1997-11-12 |
DE69406771T2 (en) | 1998-04-02 |
ES2109666T3 (en) | 1998-01-16 |
JP3343257B2 (en) | 2002-11-11 |
JPH08506047A (en) | 1996-07-02 |
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